HarperCollins · Oxford University Press
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Microfossils | Hardcover | 978-0-04-562001-2 (0-04-562001-6) | 1980 | |
| Microfossils | Paperback | 978-0-04-562002-9 (0-04-562002-4) | 1980 | |
| The Precambrian-Cambrian Boundary | Hardcover | 978-0-19-854481-4 (0-19-854481-2) | 1989 | J.W. Cowie |